openapi: 3.0.3
info:
  title: Elation Health REST Allergies Medications API
  description: RESTful API for Elation's primary care EHR platform enabling management of patient profiles, visit notes, clinical documents, problems, allergies, immunizations, vitals, medications, lab orders, imaging orders, referrals, appointments, insurance, billing, pharmacy, messaging, and practice administration. Supports OAuth2 client credentials authentication with both sandbox and production environments.
  version: '2.0'
  contact:
    name: Elation Health Developer Support
    url: https://docs.elationhealth.com/reference/api-overview
  termsOfService: https://www.elationhealth.com/
servers:
- url: https://app.elationemr.com/api/2.0
  description: Production
- url: https://sandbox.elationemr.com/api/2.0
  description: Sandbox
security:
- oauth2: []
tags:
- name: Medications
  description: Medication and prescription management
paths:
  /medications/:
    get:
      operationId: medications_list
      summary: List medications
      description: Retrieve a paginated list of patient medications.
      tags:
      - Medications
      parameters:
      - $ref: '#/components/parameters/limit'
      - $ref: '#/components/parameters/offset'
      - name: patient
        in: query
        schema:
          type: integer
        description: Filter by patient ID
      responses:
        '200':
          description: Paginated list of medications
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PaginatedMedicationList'
    post:
      operationId: medications_create
      summary: Create a medication
      description: Add a medication to a patient's medication list.
      tags:
      - Medications
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/MedicationCreate'
      responses:
        '201':
          description: Medication created
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Medication'
  /medications/{id}/:
    get:
      operationId: medications_retrieve
      summary: Retrieve a medication
      tags:
      - Medications
      parameters:
      - $ref: '#/components/parameters/id'
      responses:
        '200':
          description: Medication details
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Medication'
    delete:
      operationId: medications_destroy
      summary: Delete a medication
      tags:
      - Medications
      parameters:
      - $ref: '#/components/parameters/id'
      responses:
        '204':
          description: Medication deleted
components:
  schemas:
    MedicationCreate:
      type: object
      required:
      - patient
      - medication_name
      properties:
        patient:
          type: integer
          description: Patient ID
        medication_name:
          type: string
          description: Medication name
        sig:
          type: string
          description: Dosage instructions
        dose:
          type: string
          description: Dose amount
        dose_unit:
          type: string
          description: Dose unit (mg, mL, etc.)
        route:
          type: string
          description: Route of administration
        frequency:
          type: string
          description: Dosing frequency
        start_date:
          type: string
          format: date
        end_date:
          type: string
          format: date
        status:
          type: string
          enum:
          - Active
          - Inactive
        notes:
          type: string
    Medication:
      allOf:
      - $ref: '#/components/schemas/MedicationCreate'
      - type: object
        properties:
          id:
            type: integer
            readOnly: true
          created_date:
            type: string
            format: date-time
            readOnly: true
          deleted_date:
            type: string
            format: date-time
            nullable: true
            readOnly: true
    PaginatedMedicationList:
      allOf:
      - $ref: '#/components/schemas/PaginationMeta'
      - type: object
        properties:
          results:
            type: array
            items:
              $ref: '#/components/schemas/Medication'
    PaginationMeta:
      type: object
      properties:
        count:
          type: integer
          description: Total number of results
        next:
          type: string
          nullable: true
          description: URL for next page
        previous:
          type: string
          nullable: true
          description: URL for previous page
  parameters:
    offset:
      name: offset
      in: query
      schema:
        type: integer
        default: 0
      description: Pagination offset
    id:
      name: id
      in: path
      required: true
      schema:
        type: integer
      description: Unique resource identifier
    limit:
      name: limit
      in: query
      schema:
        type: integer
        default: 25
      description: Number of results to return
  securitySchemes:
    oauth2:
      type: oauth2
      flows:
        clientCredentials:
          tokenUrl: https://sandbox.elationemr.com/api/2.0/oauth2/token/
          scopes:
            apiv2: Full API access